Bolts arrows in a diagonal sequence
Bolts arrows in a diagonal sequence

Audi A7 Reference Specification Book

•

September 2013

Engine –
4.0L CEUC, CRDB

Lower Oil Pan Tightening Specifications

Nm
Hand-tighten
8
an additional
90° (¼ turn)

63

Oil Cooler Tightening Specifications

Step

64

Component

Nm

1

Tighten bolts 1 through 7 in sequence

3

2

Tighten bolts 1 through 7 in sequence

9

Audi A7 Reference Specification Book

•

September 2013

Engine –
4.0L CEUC, CRDB

Cooling System – 4.0L CEUC, CRDB
Fastener Tightening Specifications
Component
After-run coolant pump to bracket bolt
Air guide bolt/nut (Audi RS6/RS7)
Bracket (Audi RS6/RS7) 5
- Bolt
- Nut
Bracket bolt/nut
Bracket bolt (Audi S6/S7)
Bracket bolt (Audi RS6/RS7)
Bracket to frame bolt (Automatic Transmission)
Bracket to frame bolt (S tronic Transmission)
Bracket to front radiator coolant circuit for atf cooling bolt
(Audi RS6/RS7)
Bracket to radiator coolant circuit for ATF cooling (Audi S6/S7) 4
- Bolt
- Nut
- Bolt
Bracket to right engine oil cooler (Audi RS6/RS7) bolt
Bracket to transmission fluid cooling valve bolt
(Automatic Transmission)
Bracket to transmission fluid cooling valve bolt (S tronic
Transmission)
Bracket for charge air cooling pump nut
Bracket for engine coolant circulation pump 2 2
Coolant connection bolt
Coolant pipe nut
Coolant pump housing bolt 1
Coolant shut-off valve bolt 1
Cooler for charge air cooling circuit bolt (Audi S6/S7)
Cooler for charge air cooling circuit bolt (Audi RS6/RS7)
Engine coolant temperature sensor-to-engine
Engine temperature control sensor-to-engine
Fan shroud-to-coolant fan
Fan wheel-to-fan shroud

Audi A7 Reference Specification Book

•

September 2013

Nm
1.5
5
20
9
9
5
5
9
9
3.5

3.5
8
20
3.5
8
9
9

9
1.5
9
9
9
8 plus an
additional 90°
(¼ turn)
5 plus an
additional 90°
(¼ turn)
7
5
9
9
3.5
5

65

Fastener Tightening Specifications (cont’d)
Component
Housing for the coolant pump-to-coolant pump 1)

Nm
8 plus an
additional 90°
(¼ turn)
23
9
9
9
9

Lower front coolant pipes bolt
Lower left coolant pipe bolt (Automatic Transmission)
Lower left coolant pipe bolt (S tronic Transmission)
Lower rear coolant pipe bolt
Map controlled engine cooling thermostat-to-housing for
the coolant pump
Radiator bracket bolt (Audi S6/S7)
Radiator bracket (Audi RS6/RS7) 3)

5
7
18
9

Rear radiator coolant circuit for atf cooling to bracket nut
(Audi RS6/RS7)
Right coolant pipe bolt/nut
Right coolant pipe on the transmission bolt (Automatic
Transmission)
Right coolant pipe on the transmission bolt (S tronic
Transmission)
Rubber buffer to radiator bracket bolt (Audi S6/S7)
Rubber buffer to radiator bracket bolt (Audi RS6/RS7)
Rubber bushing to bracket bolt (Audi RS6/RS7)
Upper left coolant pipe-to-engine nut
Upper rear coolant pipe-to-engine
1)
2)

3)

4)

5)

6)

9
9
9
4.5
8
3.5
9
9

Replace fastener(s)
For bolt tightening clarification, refer to ElsaWeb, Engine Coolant Circulation Pump
2 -V178- Overview items 3 and 5.
For bolt tightening clarification, refer to ElsaWeb, Radiator Overview, Audi RS6/RS7
items 21 and 25.
For bolt tightening clarification, refer to ElsaWeb, Radiator, Radiator Coolant Circuit
for ATF Cooling Overview, Audi S6/S7, items 2, 6 and 7.
For bolt tightening clarification, refer to ElsaWeb, Radiator, Radiator Coolant Circuit
for ATF Cooling Overview, Audi RS6/RS7, items 7, 11 and 12.
For bolt tightening clarification, refer to ElsaWeb, Radiator, Right Auxiliary Cooler
Overview, Audi RS6/RS7, items 6 and 8.

66

Audi A7 Reference Specification Book

•

September 2013

Engine –
4.0L CEUC, CRDB

Fuel Supply – 4.0L CEUC, CRDB
Fastener Tightening Specifications
Component
Accelerator pedal module
Air filter housing nut
Bolt for fecuring the fuel filler neck
Carrier plate
Evaporative Emission (EVAP) canister 2)
Fuel tank
Fuel tank leak detection control module-to-EVAP canister
Fuel pump control module
Heat shield lock washer
Locking flange cover
Locking ring
Protective plate for fuel filler tube 1)
Suspended mount for exhaust system
1)

2)

Nm
8
8
20
20
1.5
20
20
1.5
1.6
2
1.5
110
3.5
20
20

For bolt tightening clarification, refer to ElsaWeb, Fuel Tank with Attachments
Overview, items 8, 9 and 13.
For bolt tightening clarification, refer to ElsaWeb, EVAP System Overview, items 2,
3 and 14.

Audi A7 Reference Specification Book

•

September 2013

67

Turbocharger, G-Charger – 4.0L CEUC,
CRDB
Fastener Tightening Specifications
Component
Air guide-to-throttle valve control module
Air guide-to-turbocharger
Ball pin for engine cover
Bank 2 turbocharger recirculation valve-to-air guide
Charge air cooler-to-charge air cooler housing
Charge air cooler housing-to-body
Charge air pressure sensor-to-air guide
Clamp 9 mm wide
Clamp 13 mm wide
Connection for oil return hose-to-turbocharger
Coolant supply pipe-to-turbocharger
Engine cover temperature sensor
Oil supply pipe-to-turbocharger
Retaining plate for coolant and oil lines-to-turbocharger
Structure-borne sound actuator
Turbocharger recirculation valve-to-air guide
Vacuum actuator-to-turbocharger
- Ball pin
- Bolt

68

Audi A7 Reference Specification Book

Nm
9
9
2.5
9
3.2
9
9
3.4
5.5
9
9
9
9
9
9
9
2.5
9

•

September 2013

Step

Component

Nm

1

Tighten bolts 1 through 8 in sequence

16

2

Tighten bolts 1 through 8 in sequence

25

Audi A7 Reference Specification Book

•

September 2013

Engine –
4.0L CEUC, CRDB

Left Turbocharger Tightening Specifications

69

Right Turbocharger Tightening Specifications

Step

70

Component

Nm

1

Tighten bolts 1 through 8 in sequence

16

2

Tighten bolts 1 through 8 in sequence

25

Audi A7 Reference Specification Book

•

September 2013

Step

Component

Nm

1

Tighten bolts 1 through 3 in sequence

5

2

Tighten bolts 1 through 3 in sequence

25

Audi A7 Reference Specification Book

Engine –
4.0L CEUC, CRDB

Turbocharger Support Tightening Specifications

•

September 2013

71

Exhaust System, Emission Controls – 4.0L
CEUC, CRDB
Fastener Tightening Specifications
Component
Bracket for Secondary Air Injection (AIR) pump motor
bolt/nut
Catalytic converter to manifold nut 1) 2)
Clamping sleeve nut
Connection flange to left air combination valve bolt
Connection flange to right Secondary Air Injection (AIR)
combination valve bolt
Connection flange-to-right secondary air injection
combination valve
Front muffler to catalytic converter nut 1) 2)
Suspended mount bolt 3)
Suspended mount bolt 4)
1)
2)
3)
4)

Nm
9
23
23
9
9
23
23
20
23

Replace
Coat the thread with hot bolt paste.
For bolt tightening clarification, refer to ElsaWeb, Muffler Overview and see item 3
For bolt tightening clarification, refer to ElsaWeb, Muffler Overview and see items
15 and 18

72

Audi A7 Reference Specification Book

•

September 2013

Fastener Tightening Specifications
Component
Air guide bolt
Air guide with turbocharger recirculation valve bolt
Bracket for the fuel rail bolt
Bracket for the low pressure line bolt
Charge air cooler temperature sensor bolt
Fuel supply hose bolt
High pressure line bolt
High pressure line union nut
High pressure pump bolt 2
Intake air temperature sensor
Intake manifold bolt 1
Intake manifold runner position sensor 2 bolt
Low fuel pressure sensor
Low pressure line bolt
Manifold absolute pressure sensor bolt
Oxygen sensor
Throttle valve control module bolt
1)
2)

Nm
2.5
9
3
9
9
9
9
25
20 plus an
additional 45°
(⅛ turn)
2.5
9
2.5
15
9
3
55
5

Tighten diagonally in steps
Replace fastener(s)

Audi A7 Reference Specification Book

•

September 2013

73

Engine –
4.0L CEUC, CRDB

Multiport Fuel Injection – 4.0L CEUC,
CRDB

Ignition – 4.0L CEUC, CRDB
Technical Data
Test Data
Engine idle speed
Ignition timing
Ignition/glow plug system

Spark plugs

Names
Tightening
specifications

4.0L TFSI engine
Cannot be adjusted, it is regulated by
idle stabilization.
Not adjustable, regulated by the
Engine Control Module (ECM).
Single coil ignition system with 8
ignition coils (output stages integrated)
that are connected directly to spark
plugs via the ignition cables.
Refer to data sheets for exhaust
emission test.
Maintenance Procedures Rep. Gr. 03

Ignition sequence

1-5-4-8-6-3-7-2

Fastener Tightening Specifications
Component
Camshaft Position (CMP) sensor-to-engine
Engine Speed (RPM) sensor-to-cylinder head
Ignition coil-to-cylinder head
Knock Sensor (KS)-to-engine
Wiring harness-to-cylinder head

74

Audi A7 Reference Specification Book

Nm
9
9
9
25
5

•

September 2013

Engine Mechanical – 3.0L CPNB
(TDI)
General, Technical Data

Engine –
3.0L CPNB (TDI)

Engine Number Location

The engine number (“engine code” and “serial number”) is
located on the left side in the front under the high pressure
pump toothed belt (Æ). In addition, a sticker with “engine code”
and “serial number” is affixed to the intake manifold. Engine
codes beginning with C are four-digit. The first 3 digits of the
engine code indicate the displacement and the mechanical
structure of the engine. The fourth digit describes the engine
output and torque. The four digit engine code is on the type
plate, vehicle data label and engine control module.

Audi A7 Reference Specification Book

•

September 2013

75

Engine Data
Code letters